1. Lifshitz IM (1968) Some problems of the statistical theory of biopolymers. Zh Eksp Teor Fiz 55:2408; [(1969) J Exp Theor Phys 28:1280]. See also Lifshitz IM (1994) In: Selected scientific works. Electronic theory of metals. Polymers and biopolymers. Nauka publishers, Moscow, p 212
2. Edwards SF (1965) Proc Phys Soc 85:613
3. Cassassa EF (1967) J Polym Sci B5:773
4. Stockmayer WH (1960) Macromol Chem Phys 35:54
5. Ptitsyn OB, Eisner YuE (1965) Biofizika 10:3